package com.lagou.edu.service.impl;

import com.lagou.edu.anno.MyAutowired;
import com.lagou.edu.anno.MyService;
import com.lagou.edu.anno.Transactional;
import com.lagou.edu.dao.AccountDao;
import com.lagou.edu.dao.impl.JdbcAccountDaoImpl;
import com.lagou.edu.pojo.Account;
import com.lagou.edu.service.TransferService;
import com.lagou.edu.utils.ConnectionUtils;
import com.lagou.edu.utils.TransactionManager;

import javax.annotation.Resource;

/**
 * @author 应癫
 */
@MyService
public class TransferServiceImpl implements TransferService {

    //private AccountDao accountDao = new JdbcAccountDaoImpl();

    // private AccountDao accountDao = (AccountDao) BeanFactory.getBean("accountDao");

    // 最佳状态
    @MyAutowired
    private JdbcAccountDaoImpl accountDao;

//    // 构造函数传值/set方法传值
//    public void setAccountDao(AccountDao accountDao) {
//        this.accountDao = accountDao;
//    }



    @Override
    @Transactional
    public void transfer(String fromCardNo, String toCardNo, int money) throws Exception {
        Account from = accountDao.queryAccountByCardNo(fromCardNo);
        Account to = accountDao.queryAccountByCardNo(toCardNo);

        from.setMoney(from.getMoney()-money);
        to.setMoney(to.getMoney()+money);

        accountDao.updateAccountByCardNo(to);
        int c = 1/0;
        accountDao.updateAccountByCardNo(from);


//        try{
//            // 开启事务(关闭事务的自动提交)
//            TransactionManager.getInstance().beginTransaction();
//
//            Account from = accountDao.queryAccountByCardNo(fromCardNo);
//            Account to = accountDao.queryAccountByCardNo(toCardNo);
//
//            from.setMoney(from.getMoney()-money);
//            to.setMoney(to.getMoney()+money);
//
//            accountDao.updateAccountByCardNo(to);
//            int c = 1/0;
//            accountDao.updateAccountByCardNo(from);
//
//            // 提交事务
//
//            TransactionManager.getInstance().commit();
//        }catch (Exception e) {
//            e.printStackTrace();
//            // 回滚事务
//            TransactionManager.getInstance().rollback();
//
//            // 抛出异常便于上层servlet捕获
//            throw e;
//
//        }




    }
}
